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Finding the Fourth Proportional to 90,034.74, 135,059.76 and 23,474.88

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Solution

The fourth proportional to 90,034.74, 135,059.76 and 23,474.88 is: 35,214.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,034.74 : 135,059.76 = 23,474.88 : x
  2. Step 2: Convert to fraction form
    90,034.74/135,059.76 = 23,474.88/x
  3. Step 3: Cross multiply
    90,034.74x = 135,059.76 × 23,474.88
  4. Step 4: Simplify right side
    90,034.74x = 3,170,511,658.83
  5. Step 5: Solve for x
    x = 3,170,511,658.83/90,034.74
  6. Step 6: Final answer
    x = 35,214.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.